M-F: 9am-5pm (PST): (877) RAPID-10

 24/7 Technical Support:

 Quick Search:

  Rapid Learning Member Area:

Rapid Learning Member Login
Note: If you are a legacy user of chemistry24 members, please request a new login access to the premium server with your full name and old login email via vip@rapidlearningcenter.com

 Rapid Courses Catalog :

Physics in 24 Hours

Chemistry in 24 Hours

Biology in 24 Hours

Mathematics in 24 Hours

 Weekly Physics Tips:
Want to become a top gun in your class? How about study less yet score high? Sign up this Physics Survival Weekly to learn how. Designed specifically for students who are taking physics, this free newsletter will show you how to survive and excel in class! Weekly topics include:
  • How to Study Physics Effectively
  • How to Read Physics Textbooks Easily
  • How to Solve Physics Problems Systematically
  • How to Score High on Physics Exams Strategically
  • How to Master Physics Rapidly
Each week, you will receive study tips on the topics above and visual tutorial or study template to enhance your physics learning. Enter your name and email below to subscribe free:


Your Name * 
Email * 

 Physics Study Lounge
These study sheets are for quick review on the subjects. Refer to our rapid courses for comprehensive review.
    - Basic Skills in Physics
    - Basic Math for Physics
    - How to Solve Physics Problems
    - Newton's Laws Study Guide
    - ElectroMagnetism Quick Review
    - Atomic Physics At-A-Glance
    - Core Concepts in Nuclear Physics
    - Special Relativity Overview

 Other Related Sites
Note: For course links to launch, disable popup blockers or hold the ctrl key while clicking the link.

Atomic Physics

Topic Review on "Title":

Electron was discovered during experiments on the discharge of electricity through rarified gases. The magnitude of electric charge (e) was determined by Millikan.  Charge of the electron = 1.602 x 10 -19 coulomb

Bohr Model of the Atom:
Proposed by Neil Bohr in 1913.  Bohr applied the Planck’s quantum theory to the Rutherford nuclear atom with remarkable success.

First postulate:
An atom consists of a positively charged nucleus at the centre. The electrons move round the nucleus in certain stationary orbits of definite radii and not all possible radii.

Second postulate:
The radius of the orbit is such that the angular momentum of the electron is an integral multiple of h/2p.

Third postulate:
Electron may jump from one orbit to the other, in which case the difference in energy between the two states of motion is radiated in the form of a light quantum.

X-Rays : 
Invisible  electromagnetic  radiations, Wavelengths range form 0.010A – 100A. These are discovered by Roentgen.  When a fast moving electron is suddenly stopped a part of its kinetic energy is converted into X-ray photon the rest of the energy is converted into heat.

Wave Particle Duality:
To understand any given experiment, we must use either the wave or the photon theory, but not both. Light sometimes behaves like a wave and some times like a particle

de Broglie Hypothesis:
Photons are treated as “packets of light” behaving like a particle.  Momentum of a photon:  p = E / c = h/l   Energy of a photon: E = hc/l

Heisenberg Uncertainty Principle:
If position is identified the momentum cannot be measured.  If momentum is measured the position is lost.  Dx  X  Dp ³ h / 4π

Rapid Study Kit for "Title":
Flash Movie Flash Game Flash Card
Core Concept Tutorial Problem Solving Drill Review Cheat Sheet

"Title" Tutorial Summary :

Atomic physics deals with the structure and behavior of the atom.  One of the most elementary and important parts of the atom is the electron.  It was discovered in 1897 by J. J. Thomson.  The behavior of these electrons, and thus the whole atom itself, was described by the Bohr theory of the atom.  This said the electrons occupy certain discrete, quantized orbits.  They cannot occupy the areas in between the set orbits.  This unusual explanation explains atomic spectra observations very well.  Another important aspect of atomic structure is the wave particle duality.  Sometimes light can behave as a wave, other times as a particle.  The same can be said of matter.  Louis deBroglie explained how particles can have wave attributes like a wavelength.  These ideas, along with other contributions, helped explain the structure of the atom.

Tutorial Features:

Specific Tutorial Features:

  • Animations of the discovery of electrons, the Bohr model of the atom, and electron transitions.

Series Features:

  • Concept map showing inter-connections of new concepts in this tutorial and those previously introduced.
  • Definition slides introduce terms as they are needed.
  • Visual representation of concepts
  • Animated examples—worked out step by step
  • A concise summary is given at the conclusion of the tutorial.

"Title" Topic List:

The discovery of electrons

The Bohr model of the atom

  • Postulates
  • Radii and energy level values
  • Quantization
  • Spectrum explanation
  • Radiation and absorption example

X rays

  • Characteristics
  • Production

The wave nature of matter

  • Particle and wave duality
  • Formulas

deBroglie hypothesis

  • Formula and example

Heisenberg’s uncertainty principle

  • Formula and example

See all 24 lessons in calculus physics, including concept tutorials, problem drills and cheat sheets:
Teach Yourself Calculus Physics Visually in 24 Hours